Home / 533,628,907.20-800,443,360.80-378,660,711.60

Finding the Fourth Proportional to 533,628,907.20, 800,443,360.80 and 378,660,711.60

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Solution

The fourth proportional to 533,628,907.20, 800,443,360.80 and 378,660,711.60 is: 567,991,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,628,907.20 : 800,443,360.80 = 378,660,711.60 : x
  2. Step 2: Convert to fraction form
    533,628,907.20/800,443,360.80 = 378,660,711.60/x
  3. Step 3: Cross multiply
    533,628,907.20x = 800,443,360.80 × 378,660,711.60
  4. Step 4: Simplify right side
    533,628,907.20x = 303,096,452,596,023,552
  5. Step 5: Solve for x
    x = 303,096,452,596,023,552/533,628,907.20
  6. Step 6: Final answer
    x = 567,991,067.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.